Digital logic based encoding strategies for steganography on voice-over-IP
MM '09 Proceedings of the 17th ACM international conference on Multimedia
An M-sequence based steganography model for voice over IP
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Adaptive partial-matching steganography for voice over IP using triple M sequences
Computer Communications
State-based steganography in low bit rate speech
Proceedings of the 20th ACM international conference on Multimedia
Lost audio packets steganography: the first practical evaluation
Security and Communication Networks
Visual steganalysis of LSB-encoded audio data based on frequency domain characteristics
Proceedings of the 6th International Conference on Security of Information and Networks
VoIP steganography and its Detection—A survey
ACM Computing Surveys (CSUR)
Wiretap-proof: what they hear is not what you speak, and what you speak they do not hear
Proceedings of the 4th ACM conference on Data and application security and privacy
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The real-time speech hiding is to hide the secret speech into a cover speech in real-time communication systems. By hiding one secret speech into the cover speech, we can get a stego speech, which sounds meaningful and indistinguishable from the original cover speech. Therefore, even if the attackers catch the audio packets on Internet, they would not notice that there is another speech hidden inside it. In this paper, we propose a scheme for speech hiding in a real-time communication system such as voice over Internet Protocol (VoIP). We propose a novel design of real-time speech hiding for G.711 codec, which is widely supported by almost every VoIP device. Experimental results show that the processing time for the proposed algorithm takes only 0.257ms, which is suitable for real-time VoIP applications.